If your freeze dryer is currently running on software version 2.4.3 or lower, it means that your hardware is likely not compatible with the newer software versions. In this case, you will not be able to upgrade to the latest software.

It's important to note that software updates are designed to provide improvements and new features, but they may require certain hardware specifications to function properly. If your freeze dryer is not compatible with the newer software versions, it means that the hardware components do not meet the requirements for the updated software.